EP2397354B1 - Heavy duty vehicle with flywheel accumulator drive - Google Patents

Heavy duty vehicle with flywheel accumulator drive Download PDF

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Publication number
EP2397354B1
EP2397354B1 EP11004853.5A EP11004853A EP2397354B1 EP 2397354 B1 EP2397354 B1 EP 2397354B1 EP 11004853 A EP11004853 A EP 11004853A EP 2397354 B1 EP2397354 B1 EP 2397354B1
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EP
European Patent Office
Prior art keywords
flywheel
generator
duty vehicle
heavy duty
combustion engine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
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EP11004853.5A
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German (de)
French (fr)
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EP2397354A1 (en
Inventor
Thomas Riek
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Scheuerle Fahrzeugfabrik GmbH
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Scheuerle Fahrzeugfabrik GmbH
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Publication of EP2397354A1 publication Critical patent/EP2397354A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/46—Series type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/08—Prime-movers comprising combustion engines and mechanical or fluid energy storing means
    • B60K6/10—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable mechanical accumulator, e.g. flywheel
    • B60K6/105—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable mechanical accumulator, e.g. flywheel the accumulator being a flywheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/30—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by chargeable mechanical accumulators, e.g. flywheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/30—Electric propulsion with power supplied within the vehicle using propulsion power stored mechanically, e.g. in fly-wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/20—Conjoint control of vehicle sub-units of different type or different function including control of steering systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2300/00—Indexing codes relating to the type of vehicle
    • B60W2300/12—Trucks; Load vehicles
    • B60W2300/125—Heavy duty trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2300/00—Indexing codes relating to the type of vehicle
    • B60W2300/13—Independent Multi-axle long vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/14—Trucks; Load vehicles, Busses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/14—Trucks; Load vehicles, Busses
    • B60Y2200/147—Trailers, e.g. full trailers or caravans
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the invention relates to a heavy load vehicle with a flywheel energy storage drive, which has at least one flywheel mass storage with a generator by which the kinetic energy stored in the flywheel energy storage is convertible into electrical energy, and which has at least one electric motor for driving at least one axis line of the heavy vehicle, the generator with electrical power is supplied, as well as a method for operating such a vehicle.
  • Vehicles in which the energy required for their operation is stored in a flywheel mass storage are known.
  • such vehicles are used to transport heavy loads, e.g. As so-called port transporters, which serve to transport containers from a quay to a storage area and vice versa.
  • Typical of the operating cycle of such a vehicle is a relatively high proportion of downtime, in which the vehicle -. B. for loading or unloading - is, and a relatively small proportion of travel times in which the vehicle z. B. moved from the quay to the storage area.
  • Such an operating cycle is predestined for the use of a flywheel energy storage drive, since the vehicle's flywheel mass storage can be easily charged during service life by connecting the vehicle to an external supply network and the flywheel energy storage device coupled to or integrated with it and from the external supply network charged electric motor is charged.
  • the disadvantage of this is that the vehicle designed as described above for charging the flywheel memory must always approach a charging station or at the loading or unloading a charging facility for the flywheel mass storage of the known vehicle must be provided.
  • a powertrain for a hybrid vehicle includes an internal combustion engine, a transmission, an electric machine, and an electrical energy storage.
  • the electric machine can be used as a generator for charging the electrical energy storage and / or discharging the electrical energy storage as a motor.
  • the electrical energy storage is designed as flywheel mass storage with associated second electric machine, wherein the flywheel energy storage device via a separate clutch with the engine mechanically coupled and thus also mechanically start and is discharged.
  • a equipped with such a powertrain hybrid vehicle then allows a purely electric driving or the support of the internal combustion engine by the electric machine and the electrical charging of the Energy storage via the internal combustion engine. In purely electric driving drives only the electric motor operated as a motor to the hybrid vehicle.
  • the electric machine operated as a motor drives the hybrid vehicle together with the internal combustion engine.
  • the flywheel energy storage device outputs mechanical energy to the associated second electric machine, which is operated as a generator and thus supplies the electrical energy for driving the electric machine.
  • the electric machine operated as a generator is driven by the internal combustion engine, wherein the electrical energy emitted by the electric machine drives the second electric machine associated with the flywheel mass storage.
  • the flywheel mass memory associated second electric machine is used as a motor for mechanically driving the flywheel mass storage and thus to charge it.
  • a load point shift of the internal combustion engine to optimize its consumption is possible.
  • the known drive train and thus equipped with him hybrid vehicle thus provides that the engine is used both for propulsion of the hybrid vehicle and for charging the flywheel mass storage.
  • the internal combustion engine must therefore be designed in such a way that it is able to drive the known hybrid vehicle as well as to charge the flywheel mass accumulator.
  • Such a construction has the disadvantage that this does not ensure that the internal combustion engine can be operated in its optimum map range.
  • the WO 95/31855 A1 describes a vehicle which has a flywheel energy storage in a generator by which kinetic energy stored in the flywheel energy storage is convertible into electrical energy, and which has at least one electric motor for driving at least one axis line of the vehicle, of the generator of the flywheel mass storage with electrical energy is supplied. It is an internal combustion engine provided, which is another Generator drives. This generator is connected to a DC bus, which in turn is connected to the electric motor, which serves to drive an axle line of the vehicle. On the other hand, the DC bus is connected to a motor / generator that drives the flywheel mass storage.
  • the flywheel mass storage provides the majority of the energy required at initial acceleration, while the engine requires the energy required to move the vehicle at a constant rate, as well as the energy needed to recharge the flywheel mass storage , generated.
  • the internal combustion engine must therefore be designed so that it is suitable both for driving the vehicle and for charging the flywheel mass storage.
  • the known vehicle therefore again has the disadvantage that there is no guarantee that the internal combustion engine can be operated in its optimum map range.
  • WO 2004/065166 A1 describes a vehicle having a plurality of axle lines whose wheels are driven by electric motors. These electric motors are powered by batteries with electrical energy. The batteries are continuously charged by generators.
  • the heavy vehicle has an internal combustion engine or a fuel cell, which drives a generator which exclusively generates the required for charging the flywheel energy storage or electrical energy that these electrical energy is supplied to the generator or the flywheel mass storage, and that this generator rotates the flywheels of the flywheel mass storage or the rotation.
  • the inventive measures a heavy duty vehicle is created in an advantageous manner, which is characterized by the fact that it no longer needs to be connected to an external power supply to charge the flywheel mass storage or energy because of the energy stored in the flywheel energy storage energy required to generate the internal combustion engine provided according to the invention is generated.
  • the internal combustion engine does not have to be operated in a partial load operation, whereby an efficient utilization of the fuel supplying the internal combustion engine and thereby a reduced environmental impact is achieved.
  • it can be made smaller, whereby further fuel economy is achieved.
  • Another advantage of the heavy-duty vehicle according to the invention is that the heavy-duty vehicle according to the invention is free of hydraulic oil, since both the actual drive and steering and brakes can be operated electrically. This is particularly advantageous when using such a heavy-duty vehicle as a port transporter, since there is no danger that the port water is polluted by leaking hydraulic oil in case of failure of the heavy duty vehicle.
  • An advantageous development of the invention provides that the internal combustion engine is designed as a gas engine. Such a measure has the advantage that no liquids are present in the heavy-duty vehicle according to the invention, which can lead to environmental problems.
  • FIGS. 1 to 3 illustrated and generally designated 1 heavy load vehicle has two axle lines 2a, 2b, which are provided with a corresponding number of wheels 3.
  • Each axle line 2a, 2b is associated with an electric motor 4a, 4b for driving the wheels 3.
  • the energy required to drive the electric motors 4a, 4b is stored in two flywheel mass stores 6a, 6b, which are each connected to the electric motors 4a, 4b via power cables (not shown).
  • Each flywheel mass memory 6a, 6b has a generator 5a, 5b, which generates the current required to drive the electric motors 4a, 4b by converting the rotational energy stored in the flywheel mass memories 6a, 6b into electrical energy.
  • an internal combustion engine 7 is provided, which in turn drives a generator 5c, which generates the current required for charging the flywheel mass memories 6a, 6b.
  • the current generated by the generator 5c is supplied to the generators 5a and 5b of the flywheel mass accumulators 6a and 6b, respectively, which then function as electric motors and thus drive the flywheel masses of the flywheel mass accumulators 6a and 6b, respectively.
  • each axle 2a or 2b has an electrically driven, connected to the generator 5a and 5b of the corresponding flywheel mass memory 6a and 6b steering cylinder 8, through which the steering angle of the wheels 3 of each axle 2a, 2b is variable ,
  • the above-described embodiment of the heavy-duty vehicle 1 by means of an electric drive of the axle lines 2a, 2b and preferably the steering and / or the brakes has the advantage that hydraulic oils can be completely dispensed with in the described heavy-duty vehicle 1.
  • the described heavy vehicle 1 is therefore particularly suitable for use in environmentally sensitive zones, such. B. in a harbor, since in an accident and / or a defect of the heavy vehicle 1 no hydraulic oil can get into the port water.
  • the internal combustion engine 7 is designed as a gas engine or a fuel cell.
  • the internal combustion engine 7 is designed as a gas engine or a fuel cell.
  • the operation of the heavy duty vehicle 1 is now as follows: To charge the flywheel mass storage 6a, 6b, the engine 7 is started and drives the generator 5c. The electrical energy generated by this generator 5c is supplied to the generators 5a, 5b of the flywheel mass accumulators 6a, 6b, which now set the flywheels of the flywheel mass accumulators 6a, 6b in rotation, whereby kinetic energy in the form of rotational energy is stored in the flywheel mass accumulators 6a, 6b. Since the internal combustion engine 7 exclusively serves to drive the flywheel mass accumulators 6a, 6b as described above, it can be tuned in an advantageous manner exclusively to the requirements occurring during charging of the flywheel mass accumulators 6a, 6b. The internal combustion engine 7 can thus always be operated in its optimum map range, resulting in improved energy utilization and thus reduced environmental impact through lower fuel consumption.
  • the engine 7 is turned off. It is thus no longer necessary in the described embodiment that the flywheel mass storage 6a, 6b charging engine 7 is operated for a long time in a partial load range.
  • the described heavy-duty vehicle 1 and the method for its operation are characterized in that the internal combustion engine 7 only for charging the flywheel mass storage 6a, 6b serves and not for driving.
  • the internal combustion engine 7 can thereby be designed much less powerful and thus smaller and more energy-efficient, as is the case with known heavy-duty vehicles. Since the internal combustion engine 7 only serves to drive the flywheel mass accumulators 6a, 6b, it can be switched off after the flywheel mass accumulators 6a, 6b have been charged, so that an energetically unfavorable, polluting and engine-damaging part-load operation can be avoided.

Description

Die Erfindung betrifft ein Schwerlastfahrzeug mit einem Schwungmassenspeicherantrieb, welches mindestens einen Schwungmassenspeicher mit einem Generator aufweist, durch den die im Schwungmassenspeicher gespeicherte kinetische Energie in elektrische Energie umwandelbar ist, und welches mindestens einen Elektromotor zum Antrieb mindestens einer Achslinie des Schwerlastfahrzeugs aufweist, der vom Generator mit elektrischer Energie versorgt wird, sowie ein Verfahren zum Betreiben eines derartigen Fahrzeugs.The invention relates to a heavy load vehicle with a flywheel energy storage drive, which has at least one flywheel mass storage with a generator by which the kinetic energy stored in the flywheel energy storage is convertible into electrical energy, and which has at least one electric motor for driving at least one axis line of the heavy vehicle, the generator with electrical power is supplied, as well as a method for operating such a vehicle.

Fahrzeuge, in denen die zu ihrem Betrieb erforderliche Energie in einem Schwungmassenspeicher gespeichert ist, sind bekannt. Insbesondere werden derartige Fahrzeuge zum Transport von schweren Lasten eingesetzt, z. B. als so genannte Hafentransporter, welche dazu dienen, Container von einem Kai zu einem Lagerareal und umgekehrt zu transportieren. Typisch für den Betriebszyklus eines derartigen Fahrzeugs ist ein relativ hoher Anteil von Standzeiten, in denen das Fahrzeug - z. B. zum Be- oder Entladen - steht, und einen relativ geringen Anteil von Fahrzeiten, in denen das Fahrzeug sich z. B. vom Kai zum Lagerareal bewegt. Ein derartiger Betriebszyklus ist für den Einsatz eines Schwungmassenspeicherantriebs prädestiniert, da der Schwungmassenspeicher des Fahrzeugs während der Standzeiten einfach aufgeladen werden kann, indem das Fahrzeug an ein externes Versorgungsnetz angeschlossen wird und der Schwungmassenspeicher von einem mit ihm gekoppelten bzw. in ihm integrierten und vom externen Versorgungsnetz gespeisten Elektromotor aufgeladen wird.Vehicles in which the energy required for their operation is stored in a flywheel mass storage are known. In particular, such vehicles are used to transport heavy loads, e.g. As so-called port transporters, which serve to transport containers from a quay to a storage area and vice versa. Typical of the operating cycle of such a vehicle is a relatively high proportion of downtime, in which the vehicle -. B. for loading or unloading - is, and a relatively small proportion of travel times in which the vehicle z. B. moved from the quay to the storage area. Such an operating cycle is predestined for the use of a flywheel energy storage drive, since the vehicle's flywheel mass storage can be easily charged during service life by connecting the vehicle to an external supply network and the flywheel energy storage device coupled to or integrated with it and from the external supply network charged electric motor is charged.

Nachteilig daran ist, dass das wie vorstehend beschrieben ausgebildete Fahrzeug zum Aufladen des Schwungspeichers immer eine Ladestation anfahren muss bzw. an der Be- bzw. Entladestelle eine Lademöglichkeit für den Schwungmassenspeicher des bekannten Fahrzeugs vorgesehen sein muss.The disadvantage of this is that the vehicle designed as described above for charging the flywheel memory must always approach a charging station or at the loading or unloading a charging facility for the flywheel mass storage of the known vehicle must be provided.

Aus der DE 10 2007 033 575 ist ein Antriebsstrang für ein Hybrid-Fahrzeug bekannt, der einen Verbrennungsmotor, ein Getriebe, eine Elektromaschine und einen elektrischen Energiespeicher umfasst. Die Elektromaschine ist als Generator zum Laden des elektrischen Energiespeichers und/oder unter Entladen des elektrischen Energiespeichers als Motor nutzbar. Der elektrische Energiespeicher ist als Schwungmassenspeicher mit zugeordneter zweiter Elektromaschine ausgeführt, wobei der Schwungmassenspeicher über eine eigene Kupplung mit dem Verbrennungsmotor mechanisch koppelbar und damit auch mechanisch start- und entladbar ist. Ein mit einem derartigen Antriebsstrang ausgestattetes Hybrid-Fahrzeug erlaubt dann ein rein elektrisches Fahren bzw. die Unterstützung des Verbrennungsmotors durch die Elektromaschine und das elektrische Laden des Energiespeichers über den Verbrennungsmotor. Beim rein elektrischen Fahren treibt nur die als Motor betriebene Elektromaschine das Hybrid-Fahrzeug an. Soll die Elektromaschine den Verbrennungsmotor unterstützen, so treibt dann die als Motor betriebene Elektromaschine zusammen mit dem Verbrennungsmotor das Hybridfahrzeug an. Dabei gibt jeweils der Schwungmassenspeicher mechanische Energie an die zugeordnete zweite Elektromaschine ab, die als Generator betrieben wird und somit die elektrische Energie zum Antrieb der Elektromaschine liefert. Zum Laden des Energiespeichers wird die als Generator betriebene Elektromaschine vom Verbrennungsmotor angetrieben, wobei die von der Elektromaschine abgegebene elektrische Energie die dem Schwungmassenspeicher zugeordnete zweite Elektromaschine antreibt. Mithin wird die dem Schwungmassenspeicher zugeordnete zweite Elektromaschine als Motor, zum mechanischen Antreiben des Schwungmassenspeichers und damit zu dessen Aufladung benutzt. Hierdurch ist eine Lastpunktverschiebung des Verbrennungsmotors zu dessen Verbrauchsoptimierung möglich. Der bekannte Antriebsstrang und somit ein mit ihm ausgerüstetes Hybrid-Fahrzeug sieht also vor, dass der Verbrennungsmotor sowohl zum Fahrantrieb des Hybrid-Fahrzeugs als auch zum Aufladen des Schwungmassenspeichers verwendet wird. Der Verbrennungsmotor muss also derart ausgelegt sein, dass er sowohl zum Fahrantrieb des bekannten Hybrid-Fahrzeugs als auch zum Aufladen des Schwungmassenspeichers in der Lage ist. Eine derartige Konstruktion hat den Nachteil, dass hierdurch nicht gewährleistet ist, dass der Verbrennungsmotor in seinen optimalen Kennfeldbereich betrieben werden kann.From the DE 10 2007 033 575 For example, a powertrain for a hybrid vehicle is known that includes an internal combustion engine, a transmission, an electric machine, and an electrical energy storage. The electric machine can be used as a generator for charging the electrical energy storage and / or discharging the electrical energy storage as a motor. The electrical energy storage is designed as flywheel mass storage with associated second electric machine, wherein the flywheel energy storage device via a separate clutch with the engine mechanically coupled and thus also mechanically start and is discharged. A equipped with such a powertrain hybrid vehicle then allows a purely electric driving or the support of the internal combustion engine by the electric machine and the electrical charging of the Energy storage via the internal combustion engine. In purely electric driving drives only the electric motor operated as a motor to the hybrid vehicle. If the electric machine is to support the internal combustion engine, then the electric machine operated as a motor drives the hybrid vehicle together with the internal combustion engine. In each case, the flywheel energy storage device outputs mechanical energy to the associated second electric machine, which is operated as a generator and thus supplies the electrical energy for driving the electric machine. For charging the energy storage, the electric machine operated as a generator is driven by the internal combustion engine, wherein the electrical energy emitted by the electric machine drives the second electric machine associated with the flywheel mass storage. Thus, the flywheel mass memory associated second electric machine is used as a motor for mechanically driving the flywheel mass storage and thus to charge it. As a result, a load point shift of the internal combustion engine to optimize its consumption is possible. The known drive train and thus equipped with him hybrid vehicle thus provides that the engine is used both for propulsion of the hybrid vehicle and for charging the flywheel mass storage. The internal combustion engine must therefore be designed in such a way that it is able to drive the known hybrid vehicle as well as to charge the flywheel mass accumulator. Such a construction has the disadvantage that this does not ensure that the internal combustion engine can be operated in its optimum map range.

Die WO 95/31855 A1 beschreibt ein Fahrzeug, welches einen Schwungmassenspeicher in einem Generator aufweist, durch die in die im Schwungmassenspeicher gespeicherte kinetische Energie in elektrische Energie umwandelbar ist, und welches zumindest einen Elektromotor zum Antrieb mindestens einer Achslinie des Fahrzeugs aufweist, der von dem Generator des Schwungmassenspeichers mit elektrischer Energie versorgt wird. Es ist ein Verbrennungsmotor vorgesehen, der einen weiteren Generator antreibt. Dieser Generator ist mit einem DC-Bus verbunden, der seinerseits mit dem Elektromotor verbunden ist, der zum Antrieb einer Achslinie des Fahrzeugs dient. Andererseits ist der DC-Bus mit einem Motor/Generator verbunden, der den Schwungmassenspeicher antreibt. Hierbei ist vorgesehen, dass der Schwungmassenspeicher bei einer anfänglichen Beschleunigung den überwiegenden Teil der benötigten Energie bereitstellt, während der Verbrennungsmotor die Energie, die für eine Bewegung des Fahrzeugs mit einer konstanten Geschwindigkeit erforderlich ist, und auch die Energie, die zum Wiederaufladen des Schwungmassenspeichers benötigt wird, erzeugt. Auch hier muss der Verbrennungsmotor also derart ausgelegt sein, dass er sowohl zum Fahrantrieb des Fahrzeugs als auch zum Aufladen des Schwungmassenspeichers geeignet ist. Das bekannte Fahrzeug besitzt daher wieder den Nachteil, dass dort nicht gewährleistet ist, dass der Verbrennungsmotor in seinem optimalen Kennfeldbereich betrieben werden kann.The WO 95/31855 A1 describes a vehicle which has a flywheel energy storage in a generator by which kinetic energy stored in the flywheel energy storage is convertible into electrical energy, and which has at least one electric motor for driving at least one axis line of the vehicle, of the generator of the flywheel mass storage with electrical energy is supplied. It is an internal combustion engine provided, which is another Generator drives. This generator is connected to a DC bus, which in turn is connected to the electric motor, which serves to drive an axle line of the vehicle. On the other hand, the DC bus is connected to a motor / generator that drives the flywheel mass storage. It is contemplated that the flywheel mass storage provides the majority of the energy required at initial acceleration, while the engine requires the energy required to move the vehicle at a constant rate, as well as the energy needed to recharge the flywheel mass storage , generated. Again, the internal combustion engine must therefore be designed so that it is suitable both for driving the vehicle and for charging the flywheel mass storage. The known vehicle therefore again has the disadvantage that there is no guarantee that the internal combustion engine can be operated in its optimum map range.

WO 2004/065166 A1 beschreibt ein Fahrzeug, das mehrere Achslinien aufweist, deren Räder von Elektromotoren angetrieben sind. Diese Elektromotoren werden von Batterien mit elektrischer Energie versorgt. Die Batterien werden kontinuierlich von Generatoren aufgeladen. WO 2004/065166 A1 describes a vehicle having a plurality of axle lines whose wheels are driven by electric motors. These electric motors are powered by batteries with electrical energy. The batteries are continuously charged by generators.

Es ist daher Aufgabe der vorliegenden Erfindung, ein Schwerlastfahrzeug der eingangs genannten Art sowie ein Verfahren zu seinem Betrieb derart weiterzuentwickeln, dass ein Anschluss an ein externes elektrisches Versorgungsnetz nicht mehr erforderlich ist und eine verbesserte Ausnutzung des Verbrennungsmotors gegeben ist.It is therefore an object of the present invention to develop a heavy-duty vehicle of the type mentioned above and a method for its operation such that a connection to an external electrical supply network is no longer necessary and improved utilization of the internal combustion engine is given.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass das Schwerlastfahrzeug einen Verbrennungsmotor oder eine Brennstoffzelle aufweist, der bzw. die einen Generator antreibt, welcher ausschließlich die zum Aufladen des oder der Schwungmassenspeicher erforderliche elektrische Energie erzeugt, dass diese elektrische Energie dem Generator des oder der Schwungmassenspeicher zugeführt ist, und dass dieser Generator die Schwungmassen des oder der Schwungmassenspeicher rotationsantreibt.This object is achieved in that the heavy vehicle has an internal combustion engine or a fuel cell, which drives a generator which exclusively generates the required for charging the flywheel energy storage or electrical energy that these electrical energy is supplied to the generator or the flywheel mass storage, and that this generator rotates the flywheels of the flywheel mass storage or the rotation.

Durch die erfindungsgemäßen Maßnahmen wird in vorteilhafter Art und Weise ein Schwerlastfahrzeug geschaffen, welches sich dadurch auszeichnet, dass es zum Aufladen des oder der Schwungmassenspeicher nicht mehr an ein externes Versorgungsnetz angeschlossen werden muss, da die zur Erzeugung der in dem Schwungmassenspeicher gespeicherten Rotationsenergie erforderliche Energie von dem erfindungsgemäß vorgesehenen Verbrennungsmotor erzeugt wird. Indem nun vorgesehen ist, dass der Verbrennungsmotor des erfindungsgemäßen Schwerlastfahrzeugs ausschließlich dazu verwendet wird, den oder mindestens einen der Schwungmassenspeicher aufzuladen, wird in vorteilhafter Art und Weise erreicht, dass der Verbrennungsmotor stets in seinem optimalen Kennfeldbereich betrieben werden kann, da er nur zum Aufladen des oder der Schwungmassenspeicher dient, nicht aber zum eigentlichen Fahrantrieb des erfindungsgemäßen Schwerlastfahrzeugs. In vorteilhafter Art und Weise muss daher der Verbrennungsmotor nicht, in einem Teillastbetrieb betrieben werden muss, wodurch eine effiziente Ausnutzung des den Verbrennungsmotor speisenden Kraftstoffs und dadurch eine verminderte Umweltbelastung erzielt wird. Außerdem kann er kleiner dimensioniert werden, wodurch eine weitere Kraftstoffeinsparung erzielt wird.The inventive measures a heavy duty vehicle is created in an advantageous manner, which is characterized by the fact that it no longer needs to be connected to an external power supply to charge the flywheel mass storage or energy because of the energy stored in the flywheel energy storage energy required to generate the internal combustion engine provided according to the invention is generated. By now providing that the internal combustion engine of the heavy-duty vehicle according to the invention is used exclusively to charge the or at least one of the flywheel energy storage, is achieved in an advantageous manner that the internal combustion engine can always be operated in its optimum map range, since he only for charging the or the flywheel mass storage is used, but not the actual drive of the heavy-duty vehicle according to the invention. Advantageously, therefore, the internal combustion engine does not have to be operated in a partial load operation, whereby an efficient utilization of the fuel supplying the internal combustion engine and thereby a reduced environmental impact is achieved. In addition, it can be made smaller, whereby further fuel economy is achieved.

Ein weiterer Vorteil des erfindungsgemäßen Schwerlastfahrzeugs liegt darin, dass das erfindungsgemäße Schwerlastfahrzeug frei von Hydrauliköl ist, da sowohl der eigentliche Fahrantrieb als auch Lenkung und Bremsen elektrisch betrieben werden können. Dies ist insbesondere beim Einsatz eines derartigen Schwerlastfahrzeugs als Hafentransporter von Vorteil, da hierdurch keine Gefahr besteht, dass das Hafenwasser durch bei einem Defekt des Schwerlastfahrzeugs austretendes Hydrauliköl verschmutzt wird.Another advantage of the heavy-duty vehicle according to the invention is that the heavy-duty vehicle according to the invention is free of hydraulic oil, since both the actual drive and steering and brakes can be operated electrically. This is particularly advantageous when using such a heavy-duty vehicle as a port transporter, since there is no danger that the port water is polluted by leaking hydraulic oil in case of failure of the heavy duty vehicle.

Eine vorteilhafte Weiterbildung der Erfindung sieht vor, dass der Verbrennungsmotor als ein Gasmotor ausgebildet ist. Eine derartige Maßnahme besitzt den Vorteil, dass im erfindungsgemäßen Schwerlastfahrzeug keine Flüssigkeiten vorhanden sind, die zu Umweltproblemen führen können.An advantageous development of the invention provides that the internal combustion engine is designed as a gas engine. Such a measure has the advantage that no liquids are present in the heavy-duty vehicle according to the invention, which can lead to environmental problems.

Weitere vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.Further advantageous developments of the invention are the subject of the dependent claims.

Weitere Einzelheiten der Erfindung sind dem Ausführungsbeispiel zu entnehmen, das im folgenden anhand der einzigen Figur beschrieben wird. Es zeigt:

Figur 1:
eine schematische Darstellung eines Ausführungsbeispiels eines Schwerlastfahrzeugs in einer Seitenansicht,
Figur 2:
das Ausführungsbeispiel der Figur 1 in einer Vorderansicht, und
Figur 3:
das Ausführungsbeispiel der Figur 1 in einer Unteransicht.
Further details of the invention can be found in the embodiment which will be described below with reference to the single figure. It shows:
FIG. 1:
a schematic representation of an embodiment of a heavy load vehicle in a side view,
FIG. 2:
the embodiment of FIG. 1 in a front view, and
FIG. 3:
the embodiment of FIG. 1 in a bottom view.

Das in den Figuren 1 bis 3 dargestellte und allgemein mit 1 bezeichnete Schwerlastfahrzeug weist zwei Achslinien 2a, 2b auf, die mit einer entsprechenden Anzahl von Rädern 3 versehen sind. Jeder Achslinie 2a, 2b ist zum Antrieb der Räder 3 ein Elektromotor 4a, 4b zugeordnet. Die zum Antrieb der Elektromotoren 4a, 4b benötigte Energie ist in zwei Schwungmassenspeichern 6a, 6b gespeichert, die über nicht gezeigte Stromkabel jeweils mit den Elektromotoren 4a, 4b verbunden sind. Jeder Schwungmassenspeicher 6a, 6b weist einen Generator 5a, 5b auf, welcher den zum Antrieb der Elektromotoren 4a, 4b benötigten Strom erzeugt, indem er die in den Schwungmassenspeichern 6a, 6b gespeicherte Rotationsenergie in elektrische Energie umwandelt.That in the FIGS. 1 to 3 illustrated and generally designated 1 heavy load vehicle has two axle lines 2a, 2b, which are provided with a corresponding number of wheels 3. Each axle line 2a, 2b is associated with an electric motor 4a, 4b for driving the wheels 3. The energy required to drive the electric motors 4a, 4b is stored in two flywheel mass stores 6a, 6b, which are each connected to the electric motors 4a, 4b via power cables (not shown). Each flywheel mass memory 6a, 6b has a generator 5a, 5b, which generates the current required to drive the electric motors 4a, 4b by converting the rotational energy stored in the flywheel mass memories 6a, 6b into electrical energy.

Zur Erzeugung der in den Schwungmassenspeicher 6a, 6b gespeicherten kinetischen Rotationsenergie ist ein Verbrennungsmotor 7 vorgesehen, der seinerseits einen Generator 5c antreibt, welcher den zum Laden der Schwungmassenspeicher 6a, 6b erforderlichen Strom erzeugt. Der vom Generator 5c erzeugte Strom wird den Generatoren 5a bzw. 5b der Schwungmassenspeicher 6a bzw. 6b zugeführt, die dann als Elektromotoren fungieren und derart die Schwungmassen der Schwungmassenspeicher 6a bzw. 6b rotationsantreiben.To generate the kinetic rotational energy stored in the flywheel mass memory 6a, 6b, an internal combustion engine 7 is provided, which in turn drives a generator 5c, which generates the current required for charging the flywheel mass memories 6a, 6b. The current generated by the generator 5c is supplied to the generators 5a and 5b of the flywheel mass accumulators 6a and 6b, respectively, which then function as electric motors and thus drive the flywheel masses of the flywheel mass accumulators 6a and 6b, respectively.

Die von den Generatoren 5a, 5b der Schwungmassenspeicher 6a, 6b erzeugte elektrische Energie wird nicht nur zum Antrieb der Elektromotoren 4a, 4b und somit zum Fahrbetrieb verwendet, sondern es ist vorzugsweise vorgesehen, dass beim beschriebenen Schwerlastfahrzeug 1 auch die Lenkung und/oder Bremsen 9 elektrisch angetrieben werden. Zur Lenkung des Schwerlastfahrzeugs 1 weist jede Achse 2a bzw. 2b einen elektrisch angetriebenen, mit dem Generator 5a bzw. 5b des entsprechenden Schwungmassenspeichers 6a bzw. 6b verbundenen Lenkzylinder 8 auf, durch den der Lenkwinkel der Räder 3 einer jeden Achse 2a, 2b veränderbar ist.The electrical energy generated by the generators 5a, 5b of the flywheel mass storage 6a, 6b is not only used to drive the electric motors 4a, 4b and thus for driving, but it is preferably provided that in the described heavy-duty vehicle 1, the steering and / or brakes. 9 be driven electrically. For steering the heavy-duty vehicle 1, each axle 2a or 2b has an electrically driven, connected to the generator 5a and 5b of the corresponding flywheel mass memory 6a and 6b steering cylinder 8, through which the steering angle of the wheels 3 of each axle 2a, 2b is variable ,

Die vorstehend beschriebene Ausgestaltung des Schwerlastfahrzeugs 1 mittels eines elektrischen Antriebs der Achslinien 2a, 2b und vorzugsweise der Lenkung und/oder der Bremsen besitzt den Vorteil, dass beim beschriebenen Schwerlastfahrzeug 1 auf Hydrauliköle vollständig verzichtet werden kann. Das beschriebene Schwerlastfahrzeug 1 eignet sich daher insbesondere für einen Einsatz in umweltsensitiven Zonen, wie z. B. in einem Hafen, da bei einem Unfall und/oder einem Defekt des Schwerlastfahrzeugs 1 kein Hydrauliköl ins Hafenwasser gelangen kann.The above-described embodiment of the heavy-duty vehicle 1 by means of an electric drive of the axle lines 2a, 2b and preferably the steering and / or the brakes has the advantage that hydraulic oils can be completely dispensed with in the described heavy-duty vehicle 1. The described heavy vehicle 1 is therefore particularly suitable for use in environmentally sensitive zones, such. B. in a harbor, since in an accident and / or a defect of the heavy vehicle 1 no hydraulic oil can get into the port water.

Vorzugsweise ist des weiteren vorgesehen, dass der Verbrennungsmotor 7 als ein Gasmotor oder eine Brennstoffzelle ausgebildet ist. Eine derartige Maßnahme besitzt den Vorteil, dass hierdurch beim Schwerlastfahrzeug 1 keine Flüssigkeiten vorhanden sind, die an die Umwelt freigesetzt werden könnten.Preferably, it is further provided that the internal combustion engine 7 is designed as a gas engine or a fuel cell. Such a measure has the advantage that in the heavy-duty vehicle 1 thereby no liquids are present, which could be released to the environment.

Die Funktionsweise des Schwerlastfahrzeugs 1 ist nun wie folgt: Zum Aufladen der Schwungmassenspeicher 6a, 6b wird der Verbrennungsmotor 7 gestartet und treibt den Generator 5c an. Die von diesem Generator 5c erzeugte elektrische Energie wird den Generatoren 5a, 5b der Schwungmassenspeicher 6a, 6b zugeführt, welche nun die Schwungmassen der Schwungmassenspeicher 6a, 6b in Rotation versetzen, wodurch kinetische Energie in Form von Rotationsenergie in den Schwungmassenspeichern 6a, 6b gespeichert wird. Da der Verbrennungsmotor 7 ausschließlich dazu dient, die Schwungmassenspeicher 6a, 6b wie vorstehend beschrieben anzutreiben, kann er in vorteilhafter Art und Weise ausschließlich auf die beim Aufladen der Schwungmassenspeicher 6a, 6b auftretenden Anforderungen abgestimmt wird. Der Verbrennungsmotor 7 kann somit stets in seinem optimalen Kennfeldbereich betrieben werden, was zu einer verbesserten Energieausnutzung und somit zu einer verringerten Umweltbelastung durch einen geringeren Kraftstoffverbrauch führt.The operation of the heavy duty vehicle 1 is now as follows: To charge the flywheel mass storage 6a, 6b, the engine 7 is started and drives the generator 5c. The electrical energy generated by this generator 5c is supplied to the generators 5a, 5b of the flywheel mass accumulators 6a, 6b, which now set the flywheels of the flywheel mass accumulators 6a, 6b in rotation, whereby kinetic energy in the form of rotational energy is stored in the flywheel mass accumulators 6a, 6b. Since the internal combustion engine 7 exclusively serves to drive the flywheel mass accumulators 6a, 6b as described above, it can be tuned in an advantageous manner exclusively to the requirements occurring during charging of the flywheel mass accumulators 6a, 6b. The internal combustion engine 7 can thus always be operated in its optimum map range, resulting in improved energy utilization and thus reduced environmental impact through lower fuel consumption.

Nachdem nun die Schwungmassenspeicher 6a, 6b aufgeladen wurden, wird der Verbrennungsmotor 7 abgeschalten. Es ist somit beim beschriebenen Ausführungsbeispiel nicht mehr erforderlich, dass der die Schwungmassenspeicher 6a, 6b aufladende Verbrennungsmotor 7 über eine lange Zeit in einem Teillastbereich betrieben wird.Now that the flywheel mass storage 6a, 6b have been charged, the engine 7 is turned off. It is thus no longer necessary in the described embodiment that the flywheel mass storage 6a, 6b charging engine 7 is operated for a long time in a partial load range.

Sinkt nun der Energieinhalt der Schwungmassenspeichern 6a und/oder 6b unter einen bestimmten Wert, wird der Verbrennungsmotor 7 gestartet und der oder die Schwungmassenspeicher 6a, 6b wie vorstehend beschrieben aufgeladen.Now sinks the energy content of the flywheel energy storage 6a and / or 6b below a certain value, the engine 7 is started and the or the flywheel mass storage 6a, 6b charged as described above.

Zusammenfassend ist festzuhalten, dass das beschriebene Schwerlastfahrzeug 1 sowie das Verfahren zu seinem Betrieb sich dadurch auszeichnen, dass der Verbrennungsmotor 7 nur zum Aufladen der Schwungmassenspeicher 6a, 6b dient und nicht zum Fahrbetrieb. Der Verbrennungsmotor 7 kann dadurch viel leistungsschwächer und damit kleiner und energiesparender ausgebildet werden kann, als dies bei bekannten Schwerlastfahrzeugen der Fall ist. Da der Verbrennungsmotor 7 nur zum Antrieb der Schwungmassenspeicher 6a, 6b dient, kann er abgeschalten werden, nachdem die Schwungmassenspeicher 6a, 6b aufgeladen sind, so dass ein energetisch ungünstiger, umweltbelastender und motorschädigender Teillastbetrieb vermieden werden kann.In summary, it should be noted that the described heavy-duty vehicle 1 and the method for its operation are characterized in that the internal combustion engine 7 only for charging the flywheel mass storage 6a, 6b serves and not for driving. The internal combustion engine 7 can thereby be designed much less powerful and thus smaller and more energy-efficient, as is the case with known heavy-duty vehicles. Since the internal combustion engine 7 only serves to drive the flywheel mass accumulators 6a, 6b, it can be switched off after the flywheel mass accumulators 6a, 6b have been charged, so that an energetically unfavorable, polluting and engine-damaging part-load operation can be avoided.

Claims (5)

  1. Heavy duty vehicle with a flywheel accumulator drive, having at least one flywheel storage (6a, 6b) with a generator (5a, 5b), by which kinetic energy stored in the flywheel storage (6a, 6b) can be transformed into electric energy, and having at least one electric motor (4a, 4b) for driving at least one axis line (2a, 2b) of the heavy duty vehicle (1), which is supplied by the generator (5a, 5b) with electric energy, characterized in that the heavy duty vehicle has a combustion engine (7) or a fuel cell, which drives the generator (5c), which exclusively serves for generating the electric energy required for loading the one or the flywheel storages (6a, 6b), that said electric energy is fed to the generator (5a, 5b) of the one or of the flywheel storages (6a, 6b), and that said generator (5a, 5b) rotably drives the flywheel masses of the one or of the flywheel storages (6a, 6b).
  2. Heavy duty vehicle according to claim 1, characterized in that the combustion engine (7) is a gas motor.
  3. Heavy duty vehicle according to one of the previous claims, characterized in that at least one axis line (2a, 2b) comprises an electric steering cylinder (8), by which the steering angle of the wheels (3) of the axis line (2a, 2b) can be changed.
  4. Heavy duty vehicle according to claim 3, characterized in that the electric steering cylinder (8) is connected with the generator (5a, 5b) of the one or of the associated flywheel storages (6a, 6b).
  5. Method for operating a heavy duty vehicle with a flywheel accumulator drive, by which the energy required for driving the heavy duty vehicle (1) is generated by at least one generator (5a, 5b) of a flywheel storage (6a, 6b), characterized in that a combustion engine (7) or a fuel cell is used, by which via a further generator (5c) the electric energy required for loading the one or the flywheel storages (6a, 6b) exclusively is generated, and that after loading the flywheel storages (6a, 6b) the combustion engine (7) or the fuel cell is turned off.
EP11004853.5A 2010-06-15 2011-06-15 Heavy duty vehicle with flywheel accumulator drive Not-in-force EP2397354B1 (en)

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DE102010023779A DE102010023779A1 (en) 2010-06-15 2010-06-15 Heavy load vehicle has internal combustion engine, which drives generator, where generator generates electrical energy required for charging flywheel mass storage
DE202010009105U DE202010009105U1 (en) 2010-06-15 2010-06-15 Heavy duty vehicle with flywheel accumulator drive

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EP2397354B1 true EP2397354B1 (en) 2015-09-16

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DE202020002425U1 (en) 2020-06-02 2021-09-03 Scheuerle Fahrzeugfabrik Gmbh Heavy-duty drive vehicle, in particular a heavy-duty towing vehicle or a heavy-duty push vehicle
DE102020003296A1 (en) 2020-06-02 2021-12-02 Scheuerle Fahrzeugfabrik Gmbh Heavy-duty drive vehicle, in particular a heavy-duty towing vehicle or a heavy-duty push vehicle
EP3919303A1 (en) 2020-06-02 2021-12-08 Scheuerle Fahrzeugfabrik GmbH Heavy duty drive vehicle, especially a heavy duty train vehicle or heavy duty pushing vehicle

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DE102022210768A1 (en) 2022-10-12 2024-04-18 Scheuerle Fahrzeugfabrik Gmbh Bogie and transport vehicle

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Publication number Priority date Publication date Assignee Title
DE202020002425U1 (en) 2020-06-02 2021-09-03 Scheuerle Fahrzeugfabrik Gmbh Heavy-duty drive vehicle, in particular a heavy-duty towing vehicle or a heavy-duty push vehicle
DE102020003296A1 (en) 2020-06-02 2021-12-02 Scheuerle Fahrzeugfabrik Gmbh Heavy-duty drive vehicle, in particular a heavy-duty towing vehicle or a heavy-duty push vehicle
EP3919303A1 (en) 2020-06-02 2021-12-08 Scheuerle Fahrzeugfabrik GmbH Heavy duty drive vehicle, especially a heavy duty train vehicle or heavy duty pushing vehicle

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DE202010009105U1 (en) 2010-10-28
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